Strange stacked stones spotted on Mars | Space photo of the day for May 21, 2026

NASA's Perseverance rover spotted a stack of rocks on the Martian surface. (Image credit: NASA/JPL-Caltech/ASU) NASA's Mars Perseverance rover has stumbled across an unusual sight: a stack of rocks on the Martian surface. How did they end up this way? Did Perseverance knock them over? So many questions. What is it? Perseverance, or Percy for short, captured this bizarre image of rocks stacked on Mars on May 13 (or Sol 1859, the rover's 1,859th day on the Red Planet). …